border-bottom-1px($color, $width = 1px)
	position: relative
	&::after
		display: block
		position: absolute
		left: 0
		bottom: 0
		width: 100%
		border-top: $width solid $color
		content: ' '
border-top-1px($color)
	position: relative
	&::before
		display: block
		position: absolute
		left: 0
		top: 0
		width: 100%
		border-top: 1px solid $color
		content: ' '

border-none()
	&:after
		display: none
